<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="../js/vue.js"></script>
</head>
<body>
<div id="app">
    {{msg}}
</div>

<script type="text/javascript">
    var vue = new Vue({
        el: "#app",
        data: {
            msg: ""
        }, created() {
            this.msg = "hello vue. created.";
            console.log(this)
        }
    });
</script>
</body>
</html>